Candlelight Vigil In Watertown, Mass.

Candlelight Vigil In Watertown, Mass.

Jared Wickerham, Getty Images

Watertown Police officer Brandon O'Neill holds a large American flag during a candlelight vigil at Victory Park in Watertown, Mass., Saturday. A manhunt for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing, ended after he was apprehended Friday night on a boat parked on a residential property in Watertown. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police in Watertown early Friday morning.

Watertown Police officer Brandon O'Neill holds a large American flag during a candlelight vigil at Victory Park in Watertown, Mass., Saturday. A manhunt for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing, ended after he was apprehended Friday night on a boat parked on a residential property in Watertown. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police in Watertown early Friday morning. (Jared Wickerham, Getty Images)

Watertown Police officer Brandon O'Neill holds a large American flag during a candlelight vigil at Victory Park in Watertown, Mass., Saturday. A manhunt for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing, ended after he was apprehended Friday night on a boat parked on a residential property in Watertown. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police in Watertown early Friday morning.